MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate the presence of a link farm on disposable hosting, with multiple URLs pointing to PDF files, suggesting a phishing or malware distribution attempt. The 'utm_term=free download uc browser apps for android' in one URL further supports a lure-based attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL http://platcometals.com/images/file/wafapopofovumidinazar.pdf
- https://kalyna.ua/sites/default/files/userfiles/file/mefaxafomufalagosupagape.pdf
- http://autoklej.pl/app/webroot/media/files/58564323107.pdf
- http://m2m2design.com/userfiles/66482790327.pdf
- http://tai-group.com/upload/files/pezudeduvajiporot.pdf
- http://verlauf-ekb.ru/admin/ckfinder/userfiles/files/pasakulasobiri.pdf
- https://refakatci.net/userfiles/file/23352383191.pdf
- http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132a9c3e1081---3611397883.pdf
- http://coumert.com/images/file/42619420175.pdf
- https://nutrishop.in/ci/userfiles/files/84584223816.pdf
- http://lanaecoloridabruzzo.it/userfiles/file/dudutobowajitozudoz.pdf
- https://silverbirdmarketing.com/pages/images/file/voweponafivosani.pdf
- http://burattinojatek.hu/userfiles/file/veboruzotusamugigokeka.pdf
- https://rowadalbyt.com/userfiles/files/78775078141.pdf
- http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16135f63d226f5---woxedutebu.pdf
- https://nabijdefossa.nl/upload/files/zevezususinepi.pdf
- https://fairtradeportal.pl/userfiles/file/43126573731.pdf
- https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/1613e1ee040888---25103470035.pdf
- http://baltyk.recykling-rejs.pl/imgturysta/files/3532571855.pdf
- https://cakenflowersonline.com/userfiles/file/11476499295.pdf
- https://mmeasar.com/mmeasarfiles/file/kipowidupebo.pdf
- http://balone.net/_upload/file///57372073938.pdf
- https://jungleflightchiangmai.com/Uploads/files/tufigumisilijesi.pdf
- http://eko-gospodarstwo.eu/files/file/74448896539.pdf
- http://serdceprirody.ru/userfiles/file/97033611943.pdf
- http://hcwan.com/userfiles/file/golezada.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=free+download+uc+browser+apps+for+android
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d755.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD755 | 16792 bytes |
font_01_sfnt_off0000ef67.bin27b414989812534a74f1a5dc031ce3f6659b38e977b8468db304c131d8dcbbe7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF67 | 17284 bytes |
font_02_sfnt_off00011b3b.binf879c2b840ef14a7bb0ffdefdbe1c744ef0b7820ca802e9eac654d19850d8e8c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B3B | 10820 bytes |
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